8min from 65 to 80 % of 5k pace
1x 1min @ 110 % of 5k pace,70 % of 5k pace
1x 2min @ 105 % of 5k pace,70 % of 5k pace
1x 3min @ 102 % of 5k pace,70 % of 5k pace
1x 4min @ 97 % of 5k pace,70 % of 5k pace
1x 5min @ 94 % of 5k pace,70 % of 5k pace
4min from 70 to 50 % of 5k pace
8min from <span
data-value="65">65</span> to <span
data-value="80">80</span>% of 5k pace 1x 1min @ <span
data-value="110">110</span>% of 5k pace,<br
/>1min @ <span
data-value="70">70</span>% of 5k pace 1x 2min @ <span
data-value="105">105</span>% of 5k pace,<br
/>1min @ <span
data-value="70">70</span>% of 5k pace 1x 3min @ <span
data-value="102">102</span>% of 5k pace,<br
/>2min @ <span
data-value="70">70</span>% of 5k pace 1x 4min @ <span
data-value="97">97</span>% of 5k pace,<br
/>2min @ <span
data-value="70">70</span>% of 5k pace 1x 5min @ <span
data-value="94">94</span>% of 5k pace,<br
/>2min @ <span
data-value="70">70</span>% of 5k pace 4min from <span
data-value="70">70</span> to <span
data-value="50">50</span>% of 5k pace Zone distribution Z1: 2m
Z2: 15m
Z3: 4m
Z4: 9m
Z5: 6m
Z6: -
A Fartlek variation with increasing interval lengths and decreasing intensities. Fartlek runs challenge the body to adapt to various speeds, conditioning you to become faster over longer distances.
No longer available in Zwift*
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